SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Ag2Pr crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Pr is bonded to twelve equivalent Ag atoms to form a mixture of edge and face-sharing PrAg12 cuboctahedra. All Pr–Ag bond lengths are 3.33 Å. Ag is bonded in a 9-coordinate geometry to six equivalent Pr and three equivalent Ag atoms. All Ag–Ag bond lengths are 2.80 Å.
Ag2Pr crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Pr is bonded in a 12-coordinate geometry to twelve equivalent Ag atoms. There are a spread of Pr–Ag bond distances ranging from 3.25–3.41 Å. Ag is bonded in a 10-coordinate geometry to six equivalent Pr and four equivalent Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.78–3.00 Å.